Bobbin-stripper



G. F. BAHAN AND A. ST. ONGE.

BBBIN STRIPPER.

APPLICATION FILED OCT. 2l, I9I8.

1,349,448. Patented Aug. 1o, 1920.

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Wifi/a6@ 55 lzoe G. F. BAHAN AND A. ST. ONGE.

BoBBlN sTmPPER.

` APPLICATION FILED OCT. 2l. I9I8. 1,349,448.

Patented Aug. 10, .11920.

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G. F. BAHAN AND A. ST. ONGE.

BOBBIN STRIPPER.

APPLICATION FILED OCT. 21, I9Ia.

1, 349,448 Patented Aug. 10, 1920.

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G. F. BAHAN AND A. ST. ONGE.

BOBBIN STRIPPEH.

APPLICATION FILED OCT. 2|, 1918.

. 1,3499448, Patented Aug. 10, 1920.

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UNITED STATES PATENT oFFl-cE.:

GEORG-E BAHAN AND AMASA ST. ONGE, OF CHARLOTTE, NORTH CAROLINA.

To all whom t may concern:

Be it known that we, GEORGE F. BAHAN and AMAsA ST. ONGE, of Charlotte, in the county of Mecklenberg and State of North Carolina, have inventedv certain new and useful Improvements in Bobbin-Strippers; and we do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled inthe art to which it appertains to make and use the same.

Our invention relates to bobbin strippers and the primary object of the invention is to provide improved means for automatically stripping waste yarn from bobbins.

A further Yobject is to provide improved means for automatically separating the bobbins and entangled threads one from the other before automatically feeding the bobbins to the separator and cleaning jaws.

Another object of the invention is to separate the bobbins one from the other while the, previous one is being stripped of its waste yarn, and to provide improved means for ej ecting and extracting the bobbins from the machine while cleaning the same.

In the accompanying drawings, Figure 1 in a side elevation of our improved machine Fig. 2 is a top planview of the same. F ig. 3 is an enlarged sectional view of the cleaner jaws. Fig. 4 is a cross sectional view on the line 4 4 of Fig. 1. Fig. 5 is a` detail perspec4 tive view of'the movable jaw and separator. Fig. 6 is a detail perspective View of the bobbin thread separator. Fig. 7 is a detail perspective view of the ejector, cradle, andv cam parts. Fig. 8 is a detail perspective view of the bobbin extractor and parts-for operating the same. Fig. 9 is a detail perspective view of the hinged guide and auxiliary cleaner. Fig. 1() is a detail view of the bobbin support.

Referring to the drawings, 1 designates the legs, and 2 the base of a supporting frame on which the main frame 3 is placed. The latter carries the feeding, cleaning, and extracting mechanism. At one end of the frame 3 is a hopper 4 into which are dumped bobbins with waste yarn still attached thereto. A portion of this hopper is cut away as at 5 to provide for ready removal of the bobbins from the hopper at the point where they are inserted into the cleaning machine. The hopper at its cut away portion rests upon the Aframe 3, additional bracings being given the hopper by legs 6.

' bobbins.

Specification of Letters Patent; Patented Aug. 10, 1920' Application led October 21, 1918, vSerial No. 259,004.

Suitably supported in bearings mounted on the base 2 is a drive shaft 9 which extends transversely of the machine and which is suitably coupled by clutch mechanism Xl with any preferred source of power. A sprocket 10 on shaft 9 drives a chain 11 running up and over a second sprocket 12 fast on a short shaft 13 supported by bearings '14, 15, the latter being formed in an upgear 18 fast on a projecting throughv an aperture 21 of part of thev frame 3 and being adapted to be projected across the feeding path of the bobbins so as to assist in disentangling the' threads of a bobbin being fed from those remaining in the hopper, the entangled arn being wrapped around the shaft as t e latter is rotated and broken from the yarn on the The shaft 19 is reciprocated by means of a lever 22 the upper bifurcated end of which engages a grooved collar 23 fixed on the shaft 19, the lever being actuated by a cam 24 on shaft 9 against the tension of a'spring 25. As the shaft 19 is withdrawn from the bobbin path threads wrapped around it will' bewiped off as soon as they contact with the frame 3 about the aperture 21.

A bobbin trough extends in a horizontal plane along the top of the machine, terminating in an arcuate portion 30. The trough is preferably formed of two spaced apart parallel plates 31 secured to the framework. Adjacent the hopper 4 the trough is provided with inclined side pieces 32 to aid in placing the bobbins in the trough. Over the arcuate portion of the trough is a retaining strip 33 which insures the bobbins being held with their heads in engagement with the trough plates. This strip is supported by brackets 34 bolted to the outer edges of the trough plates. To effect the movement of the bobbins along the horizon- 9 through the instrumentality of the chain 11 and shaft 13, `beveled gear 39 on said shaft and a second beveled gear on the shaft 3. On the shaft 13 is a gear` slidably and rotation of the troughs and to of the sprocket 37. As the bobbins reach the arcuate portion of the trough` they will ass down such portion by gravity with the ead of one bobbin, when the trough is full, bearing a ainst the head of the preceding bobbin. n order to prevent injury to the bobbins as they pass along the arcuate porfaster travel of the lar e end it is desirable to have the barrel ends retarded in their movement. This is ei'ected by a pair of spring 'aws 39 respectively secured to the sides of the frame and .extendin obliquely toward the discharge end of t e arcuate portion. These jaws retard the travel of the smaller ends of the bobbins so that the latter will leave the arcuate portion in practically a horizontal position. The arc of the trough causesthe4 bobbins to lie close to each other with the heads touching along the trough andthe barrel ends contacting with each other at the point where they are retarded bythe spring jaws.

The lower` end of the arcuate portion 31 of the bobbin trough terminates adjacent the cleaning mechanis'm of the device. We have shown the latter in the form of two jaws 40, 41, the former being arranged on .a sliding plate 42 which is. moved in 'one direction by a cam 43 on a shaft 44, move- 'ment in the opposite direction beingeffected by a spring 45, fitted within a recessed portion 46 of the plate and through which recessed portion the end ofthe shaftv projects. The shaft receives its rotary motion through a beveled gear 47 at its opposite end in mesh with a second beveled gear 48 on the' drive shaft 9. The plate 42 also carriesa separating linger 49 and a supportin plate 50, both horizontally disposed, the p ate 50 being on a plane lower than that of the finger 49 and havinga rounded protuberance 50 extending upwardly therefrom. As the bobbins are fed downwardly through the arcuate portion of the trough the first bobbin comes into engagement with the protuberance 50' and with a slight rolling ac' tion drops therefrom onto a rest 51 and a cradle to be hereinafter, described. As the plate 42 is moved by the cam 43 the following bobbins will be supported by the plate 50 and the separating finger 49. The cleaning jaw 40 moving with the plate 50 and finger 49 now comes into contact with the bobbin immediately beneath this plate and finger and moves the bobbin slightly so that thev complementary cleaner jaw will also engage the bobbin. This jaw 41 is supported in a' stationary housing 60 and is arranged for a slight movement as against the tension of a spring 61 to allow for variations inthe sizes of the bobbin spindles due to wear. The rest 51 is also fitted within the housing 61 and is provided with a spring tension 62. It will be provide for the vwithdrawn from these jaws. Upon return of the plate 42 the finger 49 will move out of the path of the trough and permit another bobbin to be fed to the cradle and the rest 51. Each of the cleaner jaws is undercut as at 63 to provide a thin edge for separating the yarn from the bobbin.

When th'e bobbin has been moved laterally the extreme end of its spindle will be received .in a cradle or ejector slidabl mounted upon the base 2 of the frame. A rod 71 is connected to the cradle at one end and at its other end is pivoted to a cam lever 72, acam 73 on the drive vshaft 9 being Fadapted to move the Vlever against the tension of a spring 74. As the ejector moves outwardly to force the bobbin 'from the machine, an extractor takes hold of the bobbin, acting back of the head thereof to cornpletely remove the bobbin as against the tension which is exerted thereon by engagement of the cleaner jaws with the yarn on the bobbin. The extractor is in the form of a bifurcated finger 76 mounted on a short shaft 77 supported in a bearing on the main frame, the shaftr at its other end carrying a link 78 to which is connected a rod 79 which is inturn connected with `a lever arm 30 adapted to be moved in one directiony by a cam 81 on the shaft 9, return of the parts to thelr normal positions being effected through a spring 82.

While the cleaning jaws 40 are usually depended upon to completely remove the yarn from the bobbins, a portion of the yarn will occasionally adhere to the bobbin. To eectively act upon such yarn as may remain after the bobbin has passed the cleaner jaws, we provide an auxiliary cleaning plate 9() which is hingedly supported in the path of the bobbin as it is projected outwardly by the ejector, the plate swinging as-the head of the bobbin strikes it and immediately iiying back to position under the tension of a spring 91, thus causing its bifurcated portion 92 to engage the spindle, removing all yarn that may remain thereon as the bobbin is extracted from the machine. It will be noted that in addition to forming an auxiliary cleaning means, this plate 90 also acts as a guide for the bobbin in its travel toward the extracting fingers.

In operation, the bobbins with the waste yarn attached are dumped in the hopper 4 and one by one are placed in the trough 30 with the spindles pointed downwardly, the heads thereof resting on the spaced apart plates forming the trough. As a finger 36 of the conveyer chain 3.5 engages one of the bobbins the latter will be pus ed along the trough. The shaft 19 being projected into the path of the bobbins, vany ends of the one last in feeding position will be c au ht up and wrapped around such shaft during its rotation causing the thread to be broken as the bobbin is moved by the conveyer. The yarn so wrapped about the shaft 19 will be wiped off the shaft as the latter is moved through the aperture 21 of the frame and will drop to the bottom of the machine. The continued feed of the'bobbins will ycause them to crowd onel another and thus cause positive feed to the end of the arcuate portion 31. It will be noted, however, that a single bobbin will be effectively fed veven if there be no others in the machine, since the conveyer will move the bobbin along the horizontal portion of the trough and to the arcuate ortion, at which point the bobbin will be ed by gravity. At the` end of the arcuate portion a bobbin will drop u on the supporting plate 50' and roll there rom to the rest 51 and cradle 70. The plate 42, with the cleaning jaw 40 and separating finger 49, is then moved so as to bring the' bobbin intocontact with the complementary cleaning jaw 4l. The cradle 70 under the y action of the cam 73 will then be moved to force the bobbin as against the tension exerted by the cleaning jaws contacting with the waste yarn on the bobbin just back of the head of the bobbin. As the cradle reaches the limit of its ejecting stroke, the extractor finger 76 will engage the head of the bobbin and pull it against the tension of the cleaning jaws on the yarn, causing the latter to be freed from the-bobbin. Whatever waste yarn still adheres to the bobbin will be stripped therefrom by the auxiliary cleaning plate 90. d.

We claim as our invention:

1. In a bobbin stripper, in combination, a trough, a conveyer for moving bobbins `along said trough, cleaning jaws to which bobbins are fed from said trough, means for causingsaid jaws to take a iirm grip on the bobbin back of the yarn, and means for moving the bobbin relatively to said jaws to strip the yarn from the bobbin, and to dischar e it from the machine.

2. n a bobbin stripper, in combination, a trough having a downwardly inclined end, a conveyer for moving bobbins along a portion of said trough, cleaning jaws adjacent said end of said inclined portion to receive said bobbins, and means for causing said jaws to strip the yarn from vsaid bobbins, such means eiecting a discharge of the bobbin.

3. In a bobbin stripper, in combination, a trough having an arcuate portion, a con-- veyer for moving bobbins along a portion of said trough, cleaning j aws adjacent the end of said arcuate portion to receivesaid bobbins, and means forcausing said jaws to strip the yain from said bobbins, such means effecting a discharge of the bobbin.

4. In a bobbin stripper, in combination, a

trough having an open bottom through which the spindles of the bobbins extend,

said trough terminating in an arcuate portion, a conveyerl for moving the bobbins along a portion of said trou h, means for retarding the spindle ends o said bobbins in their travel down said arcuate portion, cleaning jaws adjacent the end of said ar- 'said trough terminating in an arcuate'portion, a conveyer for moving the bobbins along a portion of said trough, spring jaws for retarding the spindle ends of said bobbins in their travel down said arcuate portion, cleaning jaws adjacent the end of said arcuate portion t0 receive said bobbins, and means for causing said jaws to` strip the yarn from said bobbins.

6.,. In a bobbin stripper, in combination, a trough having an open bottom through which spindles of the bobbins extend, a conveyer for moving bobbins along said trough, means for receiving the bobbins from said trough, cleaning aws adapted to be brought A into engagement with a bobbin as it rests on said receiving means, and means for moving the bobbin longitudinally through said'jaws and discharging it from the machine.

7. In a bobbinstripper, in combination, a trough having an open bottom through which spindles of the bobbins extend, a conveyer for moving bobbins along said trough, means for receiving the bobbins from said trough including a rest for the head 'of the bobbin and a cradle for the spindle end thereof, cleaning jaws adapted to be brought into engagement with a bobbin as it rests von said rest and cradle, and means for moving the cradle longitudinally through said jaws to strip the yarn from said bobbin and to discharge the latter from the machine.

8. ,In a bobbin stripper, in combination, a trough having an openbottom through which spindles of the bobbins extend, a conveyer for moving bobbins along said trough, cleaning jaws to which the bobbins are fed from said trough, an ejector for moving the bobbins relatively to said jaws, and means adapted to engage said bobbins as they are being moved relative to said jaws for extracting the bobbins from the machine. v 9. lIn a bobbin stripper, in combination, a trough, a conveyer for moving bobbins along said trough, a member adapted to be projected across the bobbin path to break cuate portion to receive. said bobbins, and l bins are edfrom said trough, and means for causing said jaws to strip the yarn from said bobbins.

10. In a bobbin stripper, in combination, a trough, a conveyer for moving bobbins along said trough, a rotary shaft adaptedv for reciprocation a'cross the bobbin .path to break entangled yarns, cleaning jaws to which bobbins are fed from said trough, and means for causing said jaws to strip the yarn from said bobbins.

11. In a bobbin stripper, in combination, a trough, a conveyer for moving bobbins along said trough, means for actuating said conveyer including a prime mover, a movable support to which bobbins are fed from said trough, means for receiving .the bobbin from said support, a cleaning jaw movable with said support, a complementary cleaning jaw, means actuated by said prime mover to move said support and first mentioned jaw toward said complementary jaw to grip a bobbin on said receiving means, and

means acting on said bobbin to move it out of said jaws to strip the yarn from the bobbin.

12. In a bobbin stripper, in combination, a trough, a conveyer Afor moving bobbins along said trough, means for actuating said conveyer including' a prime mover, a movable support to which bobbins are fed from said trough, means for receiving the bobbin from said support, a cleaning jaw movable with said support, a complementary cleaning jaw, means actuated by said prime mover to move said support and first mentioned jaw, toward said complementary jaw to grip a bobbin on said receiving means, means acting on said bobbin to move it out of said jaws to strip the yarn from the ybobbin, andan auxiliary cleaning plate with which the bobbin engages as .it isV being moved by said last mentioned means.

13. In a bobbin support, in combination, a trough, a conveyer for movingv bobbins along said trough, means for actuating said conveyer including a prime mover, a movable support to which bobbins are fed from said trough, means for receiving, the bobbin fromsad support, a cleaning jaw and a separatlng finger movable with said support, a complementary cleaning jaw, means actuated by said prime mover to move said support, the first mentioned` jaw and the separating finger toward said complementary jaw to cause the jaws to grip a bobbin on said receiving means, ejecting mechanism for moving a bobbin through said jaws, and an extractor for removing the bobbin from the machine. Y

14. In a bobbin support, in combination, a trough, a conveyer for moving bobbins alon`g said trough, means for actuating said conveyer including a prime mover, a movable support to which bobbins are fed from said trough, means for receiving the bobbin from said support, a cleaning jaw and a separating finger movable with said support, a complementary cleaning jaw, means actuated by said prime mover to move said support, the first mentioned` jaw and the separating finger toward said complementary jaw to cause the jaws to grip a bobbin on said receiving means, arecprocating ejector for moving a bobbin through said jaws, and a rocking finger for gripping the bobbin to remove it from the machine.

1n testimony whereof we have signed this specification.

. j GEO. vle?. BAHAN.

AMASA ST. ONGE. Witness to signature ofv George F. Bahan:

D. H. BRYANT. 

